Human Resources

Greater Mumbai is India's most populous city with its metropolitan area housing over 20 million people. While Delhi's urban agglomeration is larger, Mumbai city proper has the highest population within municipal limits.

According to the 2001 Census, a person aged 7 years or above who can read and write with understanding in any language is considered literate. This definition was later revised to 6+ years in subsequent censuses.

Bihar historically had the lowest per capita income growth rate among major Indian states, though this has been improving in recent years. Factors include low industrial base, agricultural dependence, and periodic floods affecting economic development.

A baby boom refers to a significant increase in fertility rates and absolute number of births during a specific period. It's characterized by a dramatic rise in birth rates, distinct from normal population growth trends.

Literacy has the strongest correlation with human longevity because it enables better healthcare access, health literacy, and understanding of preventive measures. While nutrition, hygiene, and living standards are important, education empowers informed health decisions.

The population census in India is conducted every 10 years. The first synchronous census was conducted in 1881, and since independence, it has been regularly conducted decennially (1951, 1961, 1971, 1981, 1991, 2001, 2011).

India has four metropolitan cities with populations over 10 million: Mumbai, Delhi, Kolkata, and Chennai. These are classified as Category A cities and are the major urban agglomerations in the country.

Kerala has historically had the most favorable sex ratio among Indian states, with significantly more females per 1000 males compared to most other states. The comparison with Japan's sex ratio appears to reference a specific data source or year where Kerala's ratio was noted as similar to Japan's. This makes Kerala the correct choice among the given options.

Japan has historically had one of the highest female labor force participation rates among developed nations. The 48% figure reflects its relatively high rate of women engaging in economic activities compared to other countries like the US, India, and China.

China implemented the one-child policy in 1979 as a national population control measure to address overpopulation concerns. This policy remained in effect for over three decades until 2015, when it was replaced with a two-child policy.

Tamil, Telugu, Kannada, and Malayalam are the four major Dravidian languages spoken primarily in southern India. Option B lists Indo-Aryan languages, C lists languages from multiple families including Indo-Aryan and Tibeto-Burman, and D lists Indo-Aryan languages except Manipuri.

Waterborne diseases are among the most common contemporary diseases globally. Diseases like cholera, typhoid, hepatitis A, and dysentery primarily spread through contaminated water sources. While airborne, foodborne, and animal-borne diseases exist, waterborne transmission remains the most widespread cause of infectious diseases.

Rajasthan has historically had one of the lowest literacy rates among Indian states. This is due to various socio-economic factors including geographic challenges, lower educational infrastructure development in rural areas, and cultural factors. Goa and Mizoram typically have high literacy rates, while Gujarat has moderate to high literacy rates.